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20x11 inch wheels on model S ?

Discussion in 'Model S: Driving Dynamics' started by Seric, Jun 19, 2018.

  1. Seric

    Seric New Member

    Joined:
    Jun 18, 2018
    Messages:
    2
    Location:
    NO
    SO, finally got around to buy my first EV car, ended up with a Tesla model S S85D(2015).

    Love the car so far, and it exceeds my expectations more than I could have thought.
    So only issue I have is the wheels. The stock 19" wheels does not justify the looks of the car. So looking at some aftermarket wheels. 21 or 22 " is the dream, but as my wife will also drive this care alot, I think I need to be reasonable and get some more comfort from a set of 20's. I'm able to get ha hold of a set of 20" rims at a supergreat deal, but not sure if the rear will fit. Rear rims are 20 x 11, ET 30. Will this fit? Looks like the widest rims usually used is 10,5". Seen a few 21x11, but no 20x11.
     
  2. BigCity

    BigCity Member

    Joined:
    Nov 18, 2015
    Messages:
    196
    Location:
    Avon, IN
    I would say no based on how close the fit is on my 10.5" for my 20", 21", and 22".....all comes down to the offset which I'm not knowledgeable enough about to comment on personally. With enough offset any width would fit, just depends on how much you want them to stick out from the fender wells lol.
     
  3. Seric

    Seric New Member

    Joined:
    Jun 18, 2018
    Messages:
    2
    Location:
    NO
    On your 20" rims, what offset (ET) do you have?

    Just did a calculation based on my small knowledge of how offset works (knowledge just found by google :D ), and have come to these numbers.

    Calculating distance from the mounting base to the inside of the rim = Center width in cm + ET in cm (( X * 2,54cm / 2)+(ET / 10))

    X=rim width in inches,
    ET = Offset in mm

    20"x11" with ET30 will have a 16,97cm(6,68inch) distance from the mounting base to the inside of the rim. (10,97cm from base to outside)
    20"x10,5" with ET36 will have a 16,93cm (6,66inch) distance from the mounting base to the inside of the rim. (9,74cm from base to outside)

    So numberwise, looks like both these rims should fit regarding clearance to the shock. But clearance on the wheel-wells out-side might be a case......
     
  4. Russell

    Russell Supporting Member

    Joined:
    Sep 25, 2012
    Messages:
    337
    Location:
    Silicon Valley

    You could use this https://www.1010tires.com/Tools/Wheel-Offset-Calculator#
     

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